18219121

素因数分解:

${\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{277}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 19995984

約数和(自身を除く): 1776863

約数列:

[1, 17, 53, 73, 277, 901, 1241, 3869, 4709, 14681, 20221, 65773, 249577, 343757, 1071713, 18219121]

約数ペア:

[(1, 18219121), (17, 1071713), (53, 343757), (73, 249577), (277, 65773), (901, 20221), (1241, 14681), (3869, 4709)]